Do you ride your bike, practice yoga outdoors to save on air conditioning, and inspire your roommate to live green? Get rewarded for your eco-ways.

Do you practice sustainable living every day? Get rewarded for your green habits by entering these contests:

>> Win $10,000 by being the greenest Roommate of the Year. Apartments.com’s second annual Roommate of the Year Contest includes an environmentalist category for roommates "who take unique measures to make green living a priority.” If you win the top title, you’ll get $10,000 in cash and a year’s worth of free rent. Almost makes me wish I had a roommate …. Get your entry in by June 14.

>> Win a Breezer Uptown 8 by writing a bike-ku, a.k.a. a haiku inspired by your bike. The Sierra Club is motivating people to get creatively inspired by their bikes. Simply join the nonprofit’s bicycle group on Climate Crossroads, post a photo, then compose a three-line poem. Just make sure to get your entry in by May 31 — the last day of Bike Month!

>> Win a trip to NYC and take part in the largest documented yoga event ever, happening June 22 at 6 p.m. on the Great Lawn in NYC's Central Park. Organizers hope the free yoga class — which is led by Elena Brower and hosted by Flavorpill and JetBlue’s TrueBlue — will make it into the Guinness Book of World Records. For a spot in the class — and a chance to win one of five flight-and-hotel packages if you don’t live in NYC — register at Flavorpill. Get your entry in by June 9. If you’re selected, remember to bring your own bottle and refuse the disposable plastic-wrapped stuff that’ll be given out by one of the sponsors.